/Engine/Source/Runtime/Core/Public/Containers/UnrealString.h
Caution!! this routine is O(N^2) allocations...use it for parsing very short text or not at all!
The number of elements in InArray
int32 ParseIntoArrayLines ( [TArray](API\Runtime\Core\Containers\TArray)< [FString](API\Runtime\Core\Containers\FString) > & OutArray, bool InCullEmpty ) const